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拉氏反变换出现一堆表达式，出不来结果。
这也不算失败吧，只不过很多数值，因为涉及到求解一元四次方程，软件就写成"调用该方程的第几个根"的形式了，因为如果代入求根公式的话，表达式一般会更长。 使用vpa( ans, 2 )是可以查看将所有符号数值都转换为一定精度数值的表达式 得到 exp(-...
2 years ago | 0
| accepted
